jev-ultrafast SKILL.md skillB

jev-ultrafast from akillness/jeo-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add akillness/jeo-skills/jev-ultrafast@v1.1.0

Pins v1.1.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
B, 16 of 17 checks passed
Kind
SKILL.md skill
Repository
akillness/jeo-skills
Path
.agent-skills/jev-ultrafast/SKILL.md
Versions recorded
1
Latest version
v1.1.0, committed Oct 15, 2026
Size
7,864 bytes
Repository stars
52
License
none declared

Operate browser-use/jev-ultrafast, the MIT-licensed Python browser agent that combines TypeSafe Jev choices with Browser Harness. Use when inspecting or pinning its checkout, running offline tests and browser guards, launching the loopback inspector, or reviewing a library/demo run. Triggers on Jev Ultrafast, jev-ultrafast, `uv run jev`, or its browser-agent loop. Require separate approval for package downloads, provider calls or spend, page/DOM egress, live-site navigation or actions, and…

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Jev Ultrafast operator

## When to use this skill

- Operate the exact `browser-use/jev-ultrafast` project: inspect its source, check a pinned
  checkout, or use its CLI and Python library.
- Run its offline tests, static checks, or local browser-guard checks and interpret what
  they do and do not prove.
- Start the local inspector, run a bounded browser task, or review a recorded run.
- Audit or update this skill's pinned source details after an upstream change.

Do not use this skill for generic browser automation or as a general TypeSafe SDK guide.
Route general browser/CDP setup to `browser-harness` and authenticated existing-session
continuity to `playwriter`. Route standalone TypeSafe models, endpoints, or API usage to
`typesafe-ai`.

## Instructions

### 1. Choose one route and pin the source

Choose `inspect`, `offline-check`, `browser-guards`, `demo`, `library`, or `performance`.
Read [`references/upstream.md`](references/upstream.md) before using project-specific
commands or relying on source behavior. This guide is pinned to
`1231850a0bf1a0c0341fe408ef1668dbbfdfac46` (project version `0.1.0`); do not silently
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add akillness/jeo-skills/jev-ultrafast@sha256:5b520a468cc5aa7a

The line at the top of this page pins the label v1.1.0, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_f7xfykdwuulfafmx.svg)](https://markdownregistry.com/a/art_f7xfykdwuulfafmx)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 1 version of this file, committed on Oct 15, 2026.

versioncommittedcommitsizeaudit
v1.1.0 latest2026-10-15 230e16e 7,864 BB view

Audit of the latest version

B  16 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • fail: No instruction to read or print local credentials (matched: read `.env)
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (7864 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Starting a new one? Use a template for SKILL.md on mdpantry, which passes every one of these checks and says what to change in it.

Source

GitHub

akillness/jeo-skills · 52 stars · license none declared · pushed 2026-11-05 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_f7xfykdwuulfafmx
GET https://markdownregistry.com/api/v1/resolve?ref=akillness/jeo-skills/jev-ultrafast
GET https://markdownregistry.com/api/v1/blob/5b520a468cc5aa7a78fa868b633f5e59be83a5d83a9221975c69fbfa4be4c79c

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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